Biomedical subjects

Guy Walker

Publications and source records attributed to Guy Walker.

3 recordsLinked to original sources

PubMed2005

Situation awareness measurement: a review of applicability for C4i environments.

The construct of situation awareness (SA) has become a core theme within the human factors (HF) research community. Consequently, there have been numerous attempts to develop reliable and valid measures of SA but there is a lack of techniques developed specifically for the assessment of SA in command, control, communication, computers and intelligence (C4i) environments. During the design, development and evaluation of novel systems, technology and procedures, valid and reliable situation awareness measurement techniques are required for the assessment of individual and team SA, in order to determine the improvements (or in some cases decrements) resulting from proposed design and technological interventions. The paper presents a review of existing situation awareness measurement techniques for their suitability for use in the assessment of SA in C4i environments. Seventeen SA measures were evaluated against a set of HF methods criteria. It was concluded that current SA measurement techniques are inadequate by themselves for use in the assessment of SA in C4i environments, and a multiple-measure approach utilising different approaches is recommended.

Awareness↗

PubMed2004

Moving on from 'patient dependency' and 'nursing workload' to managing risk in critical care.

The contribution nurses make to the management of critically ill patients is usually appraised through the use of concepts such as 'patient dependency' or 'nursing workload'. These concepts fail to address the knowledge, skills and experience of nurses and consequently fail to acknowledge the risk presented by critically ill patients. This paper describes the development of a tool that attempts to measure risk and the process of risk management undertaken by nurses who coordinate the shifts and lead the nursing team. The results of this pilot study indicated that the tool was valid, but reliability has not yet been demonstrated. Thus the tool requires further refinement and testing. We chose to publish at this time because we feel the paper offers a new way of examining the contribution of nurses working in critical care.

Activities of Daily Living↗

PubMedDate not supplied

Command and control in emergency services operations: a social network analysis.

There is increasing interest in the use of social network analysis as a tool to study the performance of teams and organizations. In this paper, processes of command and control in the emergency services are explored from the perspective of social network theory. We report a set of network analyses (comprising visualization, a selection of mathematical metrics, and a discussion of procedures) based on the observation of six emergency service incidents: three fire service operations involving the treatment of hazardous chemicals, and three police operations involving immediate response to emergency calls. The findings are discussed in terms of our attempts to categorize the network structures against a set of extant command and control network archetypes and the relationship between those structures; comments on the qualities the networks display are put into the contexts of the incidents reported. We suggest that social network analysis may have a valuable part to play in the general study of command and control.

Efficiency, Organizational↗